TEDxLEHIGHRIVER will offer three presentations, 7:30 p.m., at Levitt Pavilion at SteelStacks, 789 E. First St., Bethlehem. Robert M. Gordon, psychologist, will present "The Power of Apology"; Katy Worrilow, founder and CEO of LifeAire Systems LLC, will present "Noissap," and Jon Lunger, director of marketing for ArtsQuest will speak. Info: http://www.facebook.com/TEDxLehighRiver.